diff --git a/package-lock.json b/package-lock.json
index ba2fb3d..4420374 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@athenna/http",
-  "version": "5.5.0",
+  "version": "5.6.0",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@athenna/http",
-      "version": "5.5.0",
+      "version": "5.6.0",
       "license": "MIT",
       "devDependencies": {
         "@athenna/artisan": "^5.1.0",
diff --git a/package.json b/package.json
index 253181c..a928da9 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@athenna/http",
-  "version": "5.5.0",
+  "version": "5.6.0",
   "description": "The Athenna Http server. Built on top of fastify.",
   "license": "MIT",
   "author": "João Lenon <lenon@athenna.io>",
diff --git a/src/handlers/HttpExceptionHandler.ts b/src/handlers/HttpExceptionHandler.ts
index 05afe5d..967057e 100644
--- a/src/handlers/HttpExceptionHandler.ts
+++ b/src/handlers/HttpExceptionHandler.ts
@@ -33,7 +33,7 @@ export class HttpExceptionHandler {
     const body: any = {
       statusCode: Json.copy(error.statusCode) || Json.copy(error.status) || 500,
       code: String.toSnakeCase(
-        error.code || error.name || 'E_INTERNAL_SERVER'
+        `${error.code}` || error.name || 'E_INTERNAL_SERVER'
       ).toUpperCase(),
       name: Json.copy(error.name),
       message: Json.copy(error.message),